ULA - Valve

Circular supply or exhaust valve

Aesthetic in design and easy to adjust.

  • Suitable as supply or exhaust air valve.
  • Wall or ceiling installation.
  • Adjustable airflow rate.
  • Ability to measure airflow rate.
  • Attenuates duct noise.
  • Flow pattern can be directed to one direction.
  • Installation without an installation frame directly into ductwork or with a separate installation frame.

Product models and Accessories

  • Model with installation frame.
  • Protection ring for protecting the surfaces from smudging.
  • Extension part for detaching the valve from surfaces.

The supply and exhaust valve shall have a detachable front panel and collar made of painted steel, with a white (RAL 9010) standard colour.

The collar shall have fixing springs and comprise a sealing gasket to be fixed directly to the duct.
The front panel shall have a sound attenuation panel to reduce duct noise.

When used for supply, the desired flow pattern shall be adjusted by rotating the front panel and using the internal sector plate (180° or 360°).

Halton ULA

Circular supply or exhaust valve

  • Suitable as supply or exhaust air valve.
  • Wall or ceiling installation.
  • Adjustable airflow rate.
  • Ability to measure airflow rate.
  • Flow pattern can be directed to one direction.
  • Installation with or without a separate installation frame.

Product models and Accessories

  • Model with installation frame.
  • Protection ring for protecting the surfaces from smudging.
  •  Extension part for detaching the valve from surfaces.

Dimensions and weight

NS ØW ØW1
100 140 133
125 165 155
160 200 189
200 251 240

Weight (kg)

NS Weight
100 0.37
125 0.47
160 0.61
200 0.90

Material

 Part  Material  Note
 Collar  Steel  
 Front panel  Steel  
 Attenuation panel  Polyethylene  
 Sector plate  Polyethylene  
 Gasket  Polyurethane  
 Finishing  Painted
 white  (RAL 9010)
 Special colour available

Accessories

 Accessory Code  Description
 Protection ring CS  For protection of the surfaces from
 smudging and for directing the air jet
 in a grid-structured ceiling
 Extension part EP  Extension part for detaching the
 valve from the surface/
 standard height 50 mm
 Installation frame LF  Installation frame without gasket/
 height 50 mm
 Installation frame GF  Installation frame with gasket/
 height 50 mm
 Installation frame DF  Installation frame with duct
 dimensions can be installed directly to duct
 parts such as bending or T-branch etc


Fig.1. Cover plate (CS)                                 Fig.2. Extension part (EP)


Fig.3. Installation (LF)                                Fig.4. Installation frame (GF)


Fig.5. Installation frame (DF)

Function


                            Supply                                                   Exhaust

  • In supply air application in the desired flow pattern is directed using an internal sector plate. 
  • Pressure loss and airflow rate are dependent on both the flow pattern adjustment and position of the front panel. 
  • The valve attenuates duct noise.
  • The desired pressure loss and airflow rate can be adjusted in an exhaust air application, by removing the sector plate and adjusting the front panel position.

Installation

The collar of Halton ULA is installed either directly into the end of a duct with fixing springs or alternatively with the aid of a separate installation frame (LF, GF or DF).
The supply air valve can be installed in contact with the ceiling or wall surface, with or without a protection ring (CS), or with an extension part (EP).

Protection ring (CS)

The CS protection ring protects the surface from smudging and can also be used for directing the air jet in an open grid-structured ceiling installation.

NS Ø W2
100 290
125 315
160 350
200 400

Extension part (EP)

The EP extension part allows the valve to be suspended from the ceiling surface, allowing the supply air jet to be directed clear of a nearby obstacle.

NS Ø W4
100 150
125 175
160 210
200 260

Installation hole in hollow core slabs

    

NS Ø W3
100 96-101
125 121-126
160 155-161
200 195-201

Adjustment

In the supply application the sector plate is positioned prior to airflow direction. In an exhaust application the sector plate is not used, yet the spring shall be conserved.
The Halton ULA valve is adjusted by rotating the front panel. Measure the opening (A) position (in mm) of the front panel.

Set a probe inside the valve and measure the differential pressure with a manometer. The airflow rate is calculated using the formula below.
After adjustment, lock the front panel with the locking nut.

Servicing

Code description
1.   Front panel
2.   Sector plate
3.   Collar

Loosen the valve from duckwork and unscrew the front panel (1) from the collar (3) for cleaning. Remove the sector plate (2) by pulling gently to detach the spring. Clean the components with a damp cloth, instead of immersing in water. Reassemble in reverse order after cleaning.

Specification

The supply and exhaust valve shall have a detachable front panel and collar made of painted steel, with a white (RAL 9010) standard colour.

The collar shall have fixing springs and comprise a sealing gasket to be fixed directly to the duct.
The front panel shall have a sound attenuation panel to reduce duct noise.

When used for supply, the desired flow pattern shall be adjusted by rotating the front panel and using the internal sector plate (180° or 360°).

Order Code

ULA/S-D

S = Model 
       N    Standard with fastening springs
       A     For installation with a separate frame

D = Connection size
       100, 125, 160, 200

Other options and accessories

 CO = Colour
      
    W    White (RAL 9010)
           X     Special colour

Sub products

          CS    Cover plate (ULA)
          EP    Extension part
          LF    Installation frame without a gasket
          GF    Installation frame with a gasket
          DF    Installation frame for duct parts

Code example

         ULA/N-100, CO=W

Downloads & Media

Halton ULA - gb
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